Owners who have had the diesel particulate filter from their car removed will now face an instant MOT failure after the Department for Transport changed the rules this month. Modern diesel cars come ...

SCORES of diesel cars have been illegally belching lethal exhaust fumes in towns and cities across Scotland because their pollution filters have been deliberately removed. A Sunday Herald ...

I own a 2008 Mazda 6 2.0-litre diesel with 77,000 miles. A little while ago a DPF warning light came on and the car went into 'limp' mode. I spoke with the Mazda dealer who suggested the DPF filter ...

We have owned a 2007 Hyundai Santa Fe 2.2 CDI 7-seater for three years but recently it has displayed the engine management light. Our dealer carried out a diagnostic check and revealed it was a ...